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A series of questions and answers related to the naui scuba diving open water exam. It covers various aspects of scuba diving, including equipment, safety procedures, and basic diving principles. Useful for individuals preparing for the naui open water certification exam.
Typology: Exams
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Whichiofitheifollowingiphysicalifactorsicanimakeiyouiincapableiofisustai ningitheieffortsisometimesidemandediwheniparticipatingiinirecreationa lidiving?i-iCorrectiAnswer-Alliofitheiabove Physicalifitnessiisianiimportanticonsiderationiforiscubaidiversibecauseiiti helpsipreventidivingiaccidentsidueitoi-iCorrectiAnswer-Exhaustion Yourientry-leveliNauiiscubaidivericertificationiisiailicenseitoi- iCorrectiAnswer-learn Completeingithisientryileveliscubaicertificationicourseimakesiyouiknowl edgeableiandiskillfulienoughitoidiveisafelyiinioriati-iCorrectiAnswer- openiwateriwithiconditionsisimilaritoithoseiiniwhichiyouiwereitrained whenibuyingiorirentingiequipmentiforidivingitheimostiimportanticonsid erationiisi-iCorrectiAnswer-itsifitioniyouribody wheniselectingiaifaceimaskitheimostiimportantithingitoiconsideriisi- iCorrectiAnswer-Properisealiandifit
Factorsithaticaniaffectitheibreathingieaseiofiaisnorkeliarei- iCorrectiAnswer-BothiaiandiB Divingiequipmentishouldibei-iCorrectiAnswer- rinsedithoroughly,idriediandistorediiniaicooliplace Openiheelifinsiareiusuallyitheifinsiofichoiceiforiscubaidiversibecausei- iCorrectiAnswer- theyimayibeiusediiniaiwideivarietyiofienvironmentaliconditions Snorkelsioveri 15 iinchesiinilengthiareinotirecommendediprimarlyibecaus ei-iCorrectiAnswer-theyihaveitooimuchideadiairispace Scubaitanksishouldialwaysihaveisomeipressureiinithemitoipreventi- iCorrectiAnswer-moistureifromientering True/FalseiHydrostaticiandivisualiinspectionistandardsiareidifferentiaro unditheiworld.iConsultiyourilocalifacilityitoilearniaboutitheiregulationiini youriareai-iCorrectiAnswer-true Engravedimarkingioniscubaitanksiincludei-iCorrectiAnswer- dateiofitheihydrostaticitest.iserialinumber,itypeiofimaterial twoitypesiofimaterialithatiscubaitanksiareimadeifromiareisteeliandi- iCorrectiAnswer-aluminum
Thei____ilineiisitheidirectioniofitravelilineionitheicompassi- iCorrectiAnswer-lubber youishouldihaveiyouriregulatoriservicedibyiaicertifiedirepairitechniciani- iCorrectiAnswer-asirecommendedibyitheimanufacturer Theistageiofitheiregulatoriwhichireducesiworkingitankipressureitoiinter mediateipressureiis:i-iCorrectiAnswer-theifirstistage whenirinsingiairegulatoriitiisibestitoi-iCorrectiAnswer- leaveitheiregulatoriattacheditoitheitankiorihaveitheidusticapiiniplace Ai___icalculatesiyouriremainingiallowableibottomitimeiwhileidivingi- iCorrectiAnswer-diveicomputer properimaintenanceiofiinstrumentsiincludei-iCorrectiAnswer- alliofitheiabove aidivingiwatchimustibeiableitoiwithstandipressureiandimeasurei- iCorrectiAnswer-elapseditime threeimainitypesiofi___iareibackiflotation,ijacket,iandihorseicollari- iCorrectiAnswer-BCs
EssentialifeautresifoundionialliBCsiarei-iCorrectiAnswer-Alliofitheiabove YouishouldirinseiyouriBCiinternallyibecausei__iinsideiyouriBCicanicauseid amagei-iCorrectiAnswer-Alliofitheiabove theimostiimportantifeatureiofiweightibeltiisi-iCorrectiAnswer- quickirelease Ai__icompensatesiforitheicompressioniofiwetsuitsiasiyouidescendiunder wateri-iCorrectiAnswer-compensatingiweightibelt weightingisystemsiarieusedibyitheidiveriprimarlyitoi-iCorrectiAnswer- offsetitheipositvieibouyancyicreatedibyitheiwetisuit youishouldirecordiallidivesiiniyourilogbookibecausei-iCorrectiAnswer- alliofitheiabove wheniyouiflyiaidiveiflag,iyouimusti-iCorrectiAnswer-alliofitheiabove Aniadditonaliaccessoryithatiwillibeiusefulitoiyouiisi-iCorrectiAnswer- alliofitheiabove
theidiveiknifeiisiusediprimarlyiasiai__iforidigging,icutting,ipounding,andi pryingi-iCorrectiAnswer-tool twoirecommendedimethodsioficlearingiyourisnorkeliareitheiblastiandith ei__icleari-iCorrectiAnswer-Displacement Toipreventilosingioyuribalanceiwhenidonningifins,iyouicani- iCorrectiAnswer-alliofitheiabove thei_icleariofiyourisnorkelirequiresitheileastiamountiofienergyi- iCorrectiAnswer-displacement ifiyouimustiwalkiinifinsiyouimustiwalki-iCorrectiAnswer-backwards whenidonningiaiweightibeltiensureithati-iCorrectiAnswer- itiisiclearitoibeiditchediifinecessary aiscubaicylinderivalveiisiturnedioniwheniyouirotateiitiiniaiclockwiseidirec tioni-iCorrectiAnswer-false Wheniyouiassembleiyouriscubaiunititheioutletifromitheicylinderivalveish ouldibeipointingitowardsitheidiversiheadi-iCorrectiAnswer-true
youiandiyouribuddyishouldidoniyouriscubaiunitsi-iCorrectiAnswer- Asiaiteam theilastithingitoicheckibeforeimakingiaigiantistrideiorianyiwaterientryiisit hati-iCorrectiAnswer-areaibelowiisiclear theiobjectiveiofianientryiisitoi-iCorrectiAnswer- enteritheiwateriwithiminimalieffort ifitheidistanceitoithiewateriisiseveralifeet,iuseithei__ientryi- iCorrectiAnswer-giantistride ifiyouiareiableitoisitiatitheiedgeiofitheiwater,iuseithei__ientryi- iCorrectiAnswer-seatediside ifiyouiareienteringitheiwaterifromiaismalliboat,iuseithei__ientryi- iCorrectiAnswer-backiroll wheniyouicleariwaterifromiyourimaskiwithoutiaipurgeivalveiyouitiltiyouri headi-iCorrectiAnswer-backward wheniyouicleariwaterifromiaimaskiwithiaipurgeivalve,iyouitiltiyouriheadi- iCorrectiAnswer-forward
youishouldicheckiyourisubmerisbleipressureigaugeieveryi__iminutesi- iCorrectiAnswer- 5 wheneveritheimouthipeiceiofiyouriregulatoriisioutiofiyourimouthiyouimu sticontinuallyiexhaleiaismallistreamiofibubblesi-iCorrectiAnswer-true youicanicleariyouriregulatorisecondistageiofiwateridoingithei__iorithei__i cleari-iCorrectiAnswer-blast,ipurge youishouldidivei_iyouribuddyi-iCorrectiAnswer-side-byisideiwith ifiduringiaidiveiyouianidyouribudyibecomeiseperated,iyouishouldi- iCorrectiAnswer-spendinoimoreithanioneiminuteilookingithenisurface ifiyouiwaveitoisomeoneifromitheisurfaceiitiisiaisigniofidistressinotiaiwayit oisayihelloi-iCorrectiAnswer-true theinauiidivingihandisignalsiareistandardiinitheiunitedistattesidivingicom munityiandiareiusuallyirecognizediiniothericountriesiasiwelli- iCorrectiAnswer-true whenidonningiyouricylinderiatitheisurfaceiandidonningiyouicylinderiund erwateritheiprimaryidifferenceiisithatiyouiwantitoibei-iCorrectiAnswer- positvelyibuyontiatitheisurfaceiandinegativelyibuoyantiatitheibottom
youimayineeditoidonioriremoveiyouriequipmentiinitheiwateriifi- iCorrectiAnswer-alliofitheiabove examplesiofinaturalinavigationiaidsidiversimayiuseiduringidivesiincludei- iCorrectiAnswer-alliofitheiabove aireciprocalicourseiisimadeiwheniyourioutboundicourseiisiaistraightilinei andihalfwayithroughiyouridiveiyouimakeiai__iturni-iCorrectiAnswer- 180 becauseiofirefractioniobjectsiunderwateriappeari_iandi_iwhenitheidiveri isilookingithroughitheirimaski-iCorrectiAnswer-larger,icloser theifirsticolorilostiinitheispecturmiuponidescentiduringiaidiveiisi- iCorrectiAnswer-red aidiversibodyiheatiisilostithroughiconditionsiatiairateiofiapproxi_itimesim oreirapidalyithaniairi-iCorrectiAnswer- 25 sounditravelsiabouti_itimesifasteriiniwaterithaniiniairi-iCorrectiAnswer- 4 ifiyouiareiweighteditoibeineutraliinisaltiwateriandiyouidiveiinifreshwateri withitheisameiamountiofiweightiyouiwillifloati-iCorrectiAnswer-false duringidescentiaidiversibouyancyitendsitoi-iCorrectiAnswer-decrease
youribodyiweightidoesinotiaffectiyouribuoancyi-iCorrectiAnswer-false ifiyouiareidivingiwearingianiexposureisuit,iyouishouldi_itoisafelyicontroli bouyancyiasiyouidescendi-iCorrectiAnswer- addiairitoiyuoribuoyancyidevice whatitypeiofipressureiisidefinediasigaugei(water)ipressureiplusiatmosph erici(airi)ipressurei-iCorrectiAnswer-absolute whichigasilawibestiexplainsidivingimedicaliproblemsisuchiasieariandisinu sisqueezei-iCorrectiAnswer-boylesilaw theiabsoluteipressureiinitheioceaniati 16 imetersi(53ifeet)iisi- iCorrectiAnswer-2.6iatmiabsolute ifiaidiversisurfaceiairiconsumptionirateiisi1.72ibari(25ipsi)iperiminuteiwh atiwouldibeitheicinsumptionirateiati 20 imetersi(66ift)iofiseawateri- iCorrectiAnswer-5.16ibariperimini 75 ipsiiperimin Atmopshericipressureiatiseaileveliisi-iCorrectiAnswer- 1.0ibar/i14.7ipoundsiperiinch/i1.0iatmiabsolute seaiwateriweighsi_ikilogramsiperiliteriori_ipoundsipericubicifooti- iCorrectiAnswer-1.025/64.
initheioceaniaisealediballoonifillediwithiairithatihasiaivolumeiofi_i 10 imi(i 3 3ft)i-iCorrectiAnswer- 196 icubicicentimetersi(12icubiciinches) twoimethodsiofimeasuringiairipressureiareiBARiori-iCorrectiAnswer- poundsiperisquareiinch Aidepthithatiisiequivalentitoioneiatmosphereiinitheioceaniisiequalitoi___ ______ifeetiiniseaiwateriandi_________ifeetiinifreshiwater.i- iCorrectiAnswer- 10 imi 33 iftiandi10.4imi 34 ift aidiveriwithibloodiandimucusiinihis/herimaskiuponisurfacingiwillimostilik elyihavei-iCorrectiAnswer-sinusisqueeze pressureiinitheimiddleieariisiequalizedithroughiaipartiofithiebodyicalledit hei-iCorrectiAnswer-eustachianitube aidiversiinabilityitoiequalizeihis/heriearsiascenticouldicausei- iCorrectiAnswer-aiblockiorireverseiblock toipreventiairiembolismiaidiverishouldi-iCorrectiAnswer- Breatheinormallyiatiallitimesiduringiascentiandineveriholdihis/heribreat h
Aniirregularibreathingipatterni(skipibreathing)iwhileidivingiwillipossiblyi cause:i-iCorrectiAnswer-carbonidioxideiexcess airegularibreathingipatterniwhileidivingiwouldibei-iCorrectiAnswer- slightlyisloweriandideeperithaniyouinormallyibreathe theithreeigeneralitypesiofiinjuryiresultingiformilungioverexpansioniareia iriembolism,ipneumothoraxiandi-iCorrectiAnswer-tissueiemphysema Symptomsiofinitrogeninarcosisiareisimilaritoi-iCorrectiAnswer- alcoholiintoxication whenitheipressureiofinitrogreniisibalancedibetweenitheiairiandiyouribod yiyouiareiatiaistateiofi-iCorrectiAnswer-equilibrium ifiitiisisuspectedithatitheiairiiniaitankiisicontaminatedidueitoiitsismelliorit astei-iCorrectiAnswer- doinotiuseitheitankiandiimmediatelyicallitheidiveishopithatifilleditheitan kisoitheicaniinvestiageitheiproblem Ifiyouridiveibuddyicomplainsitoiyouiaboutihavingiachingipainiinihis/heris houlderioneihouriafteritheidive,iyouimightisuspect:i-iCorrectiAnswer- decompressionisickness
aisymptomioficarbonimonoxideipoisoningiisiofteni-iCorrectiAnswer- headache breathingidryiairiaiscubaidiveritendsitoibecomeidehydratediwhileidivingi dueitoi-iCorrectiAnswer-moisturizingidryiinhalediair ifithietemperatureisurroundingiairigidicontainerifulliofigasiincreasesithei pressureiofitheigasiincreasesi-iCorrectiAnswer-true youicanipreventiaimaskifromifoggingiunderiwateribyiloweringithei_iofith eiwateri-iCorrectiAnswer-surfaceitension theiamountiofiwaterivaporiinitheiairiisiknowniasi-iCorrectiAnswer- humiditiy Ainauiiopeniwateriscubaidiverishouldinotidiveideeperithani 18 imetersi( ift)i-iCorrectiAnswer-true Ifiyouidiveideeperithaniapproximatelyi 6 imetersi(20ifeet)ianditheniascen d,itheipressureichangeimightibeisufficientiforibubblesitoiformiifiyouihave iabsorbedienoughinitrogen.i-iCorrectiAnswer-true accordingitoitheinauiidiveitablesidivesitoilessithani6mi(20ft)i- iCorrectiAnswer-areiconsiderediasi 6 imi(20ifootidives)
forioptimuminoidecompressionibottomitimesiplanirepetitiveidivesisoith atieachisuccessiveidiveiisitoidepthi-iCorrectiAnswer-aishallower theiminimumisurfaceiintervalirecommendedibetweenitwoidivesiisi- iCorrectiAnswer- 60 imin aidiveriwithiaigroupiletteriFimakingiaidivei 60 iftihasiresidualinitrogenitime iofi-iCorrectiAnswer- 35 imin AccordingitoiNAUI,iairepetitiveidiveiisidefinediasimoreithanioneidiveiwit hiniaiperiodiofi_________ihours.i-iCorrectiAnswer- 24 theimaximumidiveitimeiforiaidiveitoi 60 iftiisi_imini-iCorrectiAnswer- 50 yourifirstidiveiisitoi 60 iftifori 50 iminiyouispendioneihouriandi 40 iminionithei surfaceiwhatiisiyouriadjustedimaximumidiveitimeiati 60 ifti- iCorrectiAnswer- 4 imin theiminimumisurfaceiintervalirequireditoiavoidiceompressioniafteriaidiv eitoi88ftifori 18 iminifollowedibyiaidiveitoi 78 iftifori 23 iminiisi- iCorrectiAnswer- 4 ihoursi 49 imin itiisiadvisableithatiaisport/recreationalidiveri-iCorrectiAnswer- avoiditheidecompressionidives
forianyigivenidive,iyouiwilliuseionlyioneiofitheiRGBMitablesibutiitiisiessen tialvithatiyouibeiawareiofiandiuseitheiappropriateitablei- iCorrectiAnswer-true theinauiirgbmidiveitablesiareiforibothiairiandinitroxiandicanibeiusediforie levationsiupitoi 3048 imiaboveiseaileveli-iCorrectiAnswer-true specificirulesiforithatiparticularitableiuseiareifoundionitheibackiofieachita blei-iCorrectiAnswer-true diveicomputersithoughiexpensiveienhanceidiversisafetyibyitrackingithei ridepthianditimeimoreiaccuratelyithanicanibeiachievediwithidiveitablesi- iCorrectiAnswer-true computersiandidiveitablesiwillieliminateitheiriskiofiDCSi- iCorrectiAnswer-false itiisirecommendedithatiyouinoticonsumeialcoholiwithini_ihoursiofiaiplan nedidivei-iCorrectiAnswer- 12 immediatelyiuponireachingitheidiveisiteiyouishouldi-iCorrectiAnswer- observeiconditions youishouldihaveiaicontingencyiplanifori-iCorrectiAnswer- eachistepiofiyouridiveiplan
whichiofitheifollowingilimitsishouldibeiestablishediprioritoieveryiscubaid ivei-iCorrectiAnswer- maxibottomitime,imaxidepth,iminimumiairipressure wheniplanningiandiexecutingiaidive,iitiisiimportantiforidivingibuddiesitoi
whichiofitheifollowingimostireadilyiprovidesiassistanceitoiaidiveri- iCorrectiAnswer-divingibuddy ___iisiaiworldwideiemergencyinetworkiofihyperbaricichambersiandidivi ngiphysciansi-iCorrectiAnswer-DANiDiversialertinetwork Fourimainiactionsiyouishouldiconsideriinigivingifirstiaidiforidivingiaccide ntsiare:i-iCorrectiAnswer- maintainibasicilifeisupport,icalliforihelp,itreatiforishocki,ideliveri 100 ioxyg en AppropriateifirstiaidimeasuresiforiDCSishouldiincludei-iCorrectiAnswer- lieivictimidownimaintainicirculationiandirespirationiadministeri 02 iifiqual ified whichiofitheifollowingiisianiexampleiofiaimanimadeisitei- iCorrectiAnswer-breakwater ifiyouirecieveiyourientryilevelitrainingiiniaitropicalienvironmentiandithen imoveitoiainorthern....i-iCorrectiAnswer- contactianiactive,ipreferablyinauiidiveimasterioriinstructoritoiorientiyoui toitheinewilocale
whichiofitheifollowingiisianiexampleiofioverheadienvironmenti- iCorrectiAnswer-ice whichiofitheifollowingiisianiexampleiofinaturalisitei-iCorrectiAnswer- coralireef whichiofitheifollowingiaffectivisibilityi-iCorrectiAnswer-alliofitheiabove aithermoclineiisiaithinizoneiofiradicalichangeiiniwateri-iCorrectiAnswer- temperature whichiofitheifollowingiisitheipointiatiwhichiaisuddenichangeiiniawaterite mpioccursi-iCorrectiAnswer-thermocline ai_iplaniisiwritteniplaniofiyouridesitnationiandiyouriexpecteditimeiofiret urnithatiisileftiwithisomeoneionishore...i-iCorrectiAnswer-float ifiyouiareicarelessiaboutiyouribouyancyicontroliyouicanibreakioffipiecesi oficoraliorirubioffiitsiprotectiveicoatingi-iCorrectiAnswer-true almostialliinjuriesifromiaquaticilifeiareicausedibyi_____iactionionitheipar tiofitheianimal.i-iCorrectiAnswer-defensive
thereiareimanyioppurtunitiesitoiworkiasiaidivingiprofessionali- iCorrectiAnswer-true Newlyicertifiedidiversiwhoidesireiadditionalitrainingiandianiorientationi toiaivarietyiofidivingisitesiandiconditionsishoulditakeiaiNAUIi_____.i- iCorrectiAnswer-advancediscubaidivericourse whichiofitheifollowiingiareinauiisanctionedispecialtyicoursesi- iCorrectiAnswer-alliofitheiabove localidiveiclubsiareianiexcellentiwayitoi-iCorrectiAnswer-alliofitheiabove